mybatis快速入门(六)

package cn.my.dao;

import java.util.List;
/**
 * 将公用方法提取出来
 * @author Administrator
 *
 * @param <T>
 */
public interface BaseDao<T> {

    public List<T> findAll();
    public T findById(int id);
    public void insert(T entity);
    public void update(T entity);
    public void delete(int id);
}

package cn.my.dao;

import java.util.List;

import cn.my.mybatis.entity.User;
import cn.my.mybatis.entity.UserQueryVo;

public interface UserDaoMapper extends BaseDao<User> {
    
    public List<User> findByNameAndSex(UserQueryVo userVo);
    public List<User> findByIds(UserQueryVo userVo);
    /**
     * 直接注释父接口中已有的方法
     */
//    public User findById(int id);
//    public void insert(User entity);
//    public void update(User entity);
//    public void delete(int id);
}

package cn.my.dao;

import java.util.List;

import cn.my.mybatis.entity.Orders;

public interface OrdersDaoMapper extends BaseDao<Orders> {
//    public List<Orders> findAll();
    public List<Orders> findDetialAll();
}

   @Test  
    public void testfindDetialAll(){  
        SqlSession session = factory.openSession();
        OrdersDaoMapper dao = session.getMapper(OrdersDaoMapper.class);//获取mybatis的动态代码实现接口对象
        List<Orders> list = dao.findDetialAll();
        session.close();  
        for (Orders orders : list) {
            System.out.println(orders);  
        }
    }